101257218092 has 24 divisors (see below), whose sum is σ = 186551492400. Its totient is φ = 47957507136.

The previous prime is 101257218091. The next prime is 101257218109. The reversal of 101257218092 is 290812752101.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (101257218091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 506438 + ... + 677490.

It is an arithmetic number, because the mean of its divisors is an integer number (7772978850).

Almost surely, 2^101257218092 is an apocalyptic number.

It is an amenable number.

101257218092 is a deficient number, since it is larger than the sum of its proper divisors (85294274308).

101257218092 is a wasteful number, since it uses less digits than its factorization.

101257218092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178865 (or 178863 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 38.

The spelling of 101257218092 in words is "one hundred one billion, two hundred fifty-seven million, two hundred eighteen thousand, ninety-two".